Power roller and surfacer



March 29, 1932. 1.. w SIEGEL 1,851,875

POWER ROLLER AND SURFACER Filed M'arch'28, 1931 3 Sheets-Sheet lLJlS-eyel alibi wag March 29, 1932. L7 w SHE-GEL Q 1,851,875

POWER ROLLER AND SURFAGER Filed March 28, 1931 3 Sheets-Sheet 2 iii.

gwoentoz L. MSiey eZ March 29, 1932. L. w. S IEGEL POWER ROLLER ANDSURFACER Filed March 28, 1931 I5 Sheets-Sheet ink/5i eye Patented Mar.29, 1932.

PATENT 'QFFICE LEE W. SIEGEL, OF ELGIN, ILLINOIS POWER- ROLLER AN DSURFAGER Application filed March 28, 1931.

This invention relates to machines for rolling lawns of golf courses,cemeteries, parks, athletic fields, etc., and particularly to a rollerof this character of a very simple, cheap and compact construction, andwhich is operated by automotive power.

One of the objects of the present invention is to provide a small,compact and easily handled combined roller and scarifier which isparticularly adapted for rolling and leveling lawns, fairways, tenniscourts and the like, but which is also adapted to be used by contractorsand others in rolling and leveling roads or other surfaces.

A further object of the invention is to provide a construction of thischaracter having rollers which may be more or less filled with water tothus give a proper weight to the rollers for the work to be done andprovide simple means whereby the machine may be caused to travelforwardly or reversed.

Another object is to provide a scarifier or surface mounted upon therear of the machine and capable of being vertically adjusted and providemeans whereby the power unit of the machine may be connected to ordisconnected from the scarifier at the willof the operator.

A further object is to provide means whereby the machine may be steeredby power if desired, the steering, of course, being under the control ofthe operator.

Other objects will appear in the course of the following description.

My invention is illustrated in the accompanying drawings, wherein Figure1 is a side elevation of a power roller and surfacer constructed inaccordance with my invention;

Figure 2 is a Vertical section through the rear of the machine;

Figure 3 is a fragmentary detailed view showing the manner of connectingthe front roller yoke to the frame of the machine;

Figure 4 is an elevation of one of the scarifier disks;

Figure 5 is a top plan view of the structures shown in Figures 1 and 2;

Figure 6 is a section through the transmission gearing;

Serial No. 526,109

Figure 7 is a top plan view of a power operated steering mechanism.

Figure 8 is a transverse sectional view through the shaft 30 showing thebraking mechanism therefor.

Referring to these drawings, 10 designates the frame of the machine,which frame is supported upon a rear roller and upon a forward roller.The forward end of the frame, which frame is preferably of angle iron orchannel iron, is upwardly extended to provide a goose neck 11 which isV-shaped in plan and which supports the bearing for a verticallydisposed yoke 12. This yoke is bifurcated to provide two downwardlyextending arms through which the shaft 13 of the forward roller 14passes.

This yoke is pivotally connected at 16 to the vertical pin 17 passingthrough the yoke. Thus the yoke 12 may oscillate upon the pivot 16, butany rotation of the yoke will cause a rotation of the roller to steerthe machine.

As illustrated in Figure 1, the yoke 12 is oscillated by means of thelongitudinally ex tending rod 18 which, at its rear end, is *connectedto an oscillating arm 19 mounted upon a transverse shaft 20 in turnconnected in any suitable manner to the steering shaft 21 which ismounted in the usual steering post and has the usual steering wheel 22.I have provided means, as will be later described, however, whereby themachine may be steered by power. The rear end of the machine issupported upon a rear roller 23, the shaft of which is supported inbearings 24. These bearings are slotted at 25 and are mounted upon thelateral frame beams of the machine by means of bolts 26 passing throughsaid slots so that these bearing brackets 25 may be shiftedlongitudinally upon the frame of r the machine.

Mounted beneath the hood 27 is an engine of any suitable constructionand power. This engine has extending rearward from it the usual driveshaft 28 which extends into a 9 upon the shaft of the roller 23. Looseupon this shaft are the opposed beveled gear wheels 34 and 34.

Splined upon the shaft 30 is the intermediate double clutch designatedgenerally 35 provided with the opposed clutch faces 36 adapted to engagefrictionally or otherwise with coacting clutch faces formed upon thebeveled gear wheels 33 and 34. The middle of this double clutch isformed with an an nular recess 37 to receive the usual shipper ring orfork and is operatively connected to a shift lever 38 extending downwardthrough an opening in the housing 29. In this construction, thetransmission lever controls the direction of movement of the machine.When the lever is shifted to the right, the machine is in reverse andmoves rearward and when the transmission lever is toward the left, themachine will move forward. When the transmission lever is in the middleand the clutch is in themiddle, the machine is in neutral. here thelever enters the jack shaft housing 29, there is provided a packing nut39 which makes an oil-tight joint. The friction of the packing holds theshift lever in either one of its three positions. The housing 29 is tobe filled with oil so that the transmission gears will run in oil.

The rear end of the machine is formed with opposed vertical guides 40which form part of the frame of the machine. Operating within theseguides is a rectangular frame desig nated generally 41 formed of theupper and lower cross bars 42 and the braces 43. The upper cross bar 41carries upon it the fixed nuts 44. Extending vertically downward througha fixed cross bar 45 are the two opposed screws 46 which engage the nuts44.

" Mounted in bearing-brackets 47 upon the cross bar 45 is a shaft 48carrying beveled pinions 49 engaging beveled pnnons 50 on the screwsThis shaft 48 is provided with a hand wheel 51. In turning this wheel,the frame 41 may be raised or lowered within its guides. The lower endof the frame extends down below the guides and carries bearings for atransverse shaft 52. Mounted upon this shaft are a plurality ofdisk-like rollers 53 held in place upon the shaft by the nuts 54engaging the shaft. Each of these rollers carries one or more knives orblades 55, the blades of the several rollers being arranged to describea spiral around the roll formed of the separate rollers 55. These knivesact as scarifying knives and when the frame 41 is lowered, the knivesout into the ground and scarify or cut away any projection, thusleveling the ground.

This scarifier or surfaeer is driven by means of band wheel 56 mountedupon the shaft 52 and over which a band 57 passes. The band 57 passesaround a relatively large band wheel a 5 8 loosely mounted upon the jackshaft 30. Suitable means is provided whereby this pulley may be clutchedto the jack shaft or unclutched therefrom. To this end, I have shown aclutch member 59 mounted upon the jack shaft 30 to rotate therewith andhave shown the opposed face of the band wheel 38 as being provided withclutch teeth. I have also shown the hub of this band wheel as beingformed with an annular groove 60 with which a yoke 61 engages, this yokebeing part of an operating rod 62 extending laterally beneath the floor63 of the machine to a vertical shaft 64 having a crank connected to therod 62 and having a handle whereby it may be operated.

It will thus be seen that the scarifier may be operated or not as theoperator desires and that the scarifier may be raised or lowered eitherto raise it entirely above the ground so that it will not under anycircumstances touch anything or may be lowered to different degrees toout either deeper or shallower as desired.

In Figure 7, I have illustrated means whereby the power of the enginemay .be used for steering the machine. To this end, the shaft 20 isshown as carrying upon it the worm wheel 65 which in turn is connectedto a longitudinally extending shaft 66. This carries upon it thefrictioncone 67. Mounted upon the shaft 30 are the opposed connectedfriction cones 68 and 69. An operating yoke is engaged with the hubs ofthese cones so that when the yoke is shifted in one direction, the cone68 will be brought into engagement with the cone 67 and when in theopposite direction, the cone 69 will be brought into engagement with thecone 67. This yoke 70 may be connected to a vertical operating shaft 71having a handle 72at its upper end. Thus the power of the transmissionshaft may be used for operating the steering mechanism of the machinewhich is sometimes necessary where the rollers are very heavy and whereit is, therefore diflicult for the operator to exert sufficient power toturn the front roller. Of course, when the friction wheel 67 is out ofengagement with either of the friction wheels 68 or 69, the machine willtravel in a straight path but when it is desired to turn the frontroller to the right or to the left, the manually controlled means isoperated to shift one or the other of the wheels 68 or 69 intoengagement with the driving wheel 67.

From Figures 5 and 8, it will be seen that I have provided a brake inconnection with the shaft 30, this brake being designated 73 andoperating against a brake wheel 74' The brake may be mounted in anysuitable manner as for instance upon the lever 75 operated by means of arod 76 and the usual brake pedal. The brake holds the machine whileshifting gears, thereby avoiding clashing of the clutches. As will beseen from Figure 5, the frontand rear rollers are carried by a tubularsleeve 77 through which the shaft for the roller passes, the purpose ofthis being to keep the water from contact with the driving shaft uponwhich the rollers are mounted. The knives are preferably forced into thedisks 53 and held in place by a pin passing through the disk and intothe shank of the knife as illustrated in Figure 4. The end disks onshaft 52 are splined on the shaft.

The remainder of the disks, however, are not.

splined upon the shaft. By adjusting the disks in staggered relationupon the shaft, the cylinder formed of the disks is balanced.Furthermore if a knife should strike any movable object, this diskispermitted to slip thereby preventing damage to the cylinder or themachine. This also is permitted by the belt drive 57 It will be seenthat I have provided a mechanism of this character which is very simple,strong, compact and particularly adapted for use where a relativelylight power operated roller is necessary and is, therefore, particularlyadapted for use on golf courses, on large lawns, in parks and in likesituations. The weight of the machine may be increased or decreased byadding water to the forward and rear rollers or taking water therefrom.When it is desired to use the scarilier, the transmission is put inreverse and the machine backed toward the hump or other part which is tobe cut away. The scarifier hav ing been thrown into action, it will cutoff this offending hump or protuberance and then the area so acted uponwill be rolled. Of course, the scarifier will also operate upon aforward movement of the machine. If rolling is to be done immediatelyafter the scarifying operation, the machine must be reversed.

I claim 1. A ground rolling and scarifying machine comprising asupporting frame, a front roller mounted beneath the forward end of thesupporting frame for movement in a horizontal plane, manually operablemeans for rotatively shifting the roller to steer the machine, a rearroller mounted in bearings in the rear end of the machine, an engine, ajack shaft extending across the machine and operatively engaged with theengine, manually controlled means for transmitting the power of saidjack shaft to the rear roller and cause either the forward or rearwardmovement thereof, a scarifying roller having scarifying teeth, means forrotatably supporting said scarifying roller from said frame rearwardlyof said rear roller, said supporting means including guides fixedlysecured to said frame rearwardly of the rear roller, a slide positionedin said guides, manually operable means supported by said guides forvertically adjusting the scarifying roll, and manually controllablemeans for driving the scarifying roll from said jack shaft, includingcoacting clutch members mounted upon the jack shaft, one of said membersbeing operatively connected to the scarifying roll, and manuallyoperable means for shifting said clutch members into or out of coactiveengagement.

2. A ground roll and scarifier comprising a supporting frame, a frontroller mounted beneath the forward end of the supporting frame formovement in a horizontal plane, manually operable means for shifting thefront roller in a horizontal plane to steer the machine, a rear rollermounted beneath the rear end of the machine, an engine in cluding adrive shaft, a transversely extending jack shaft mounted on the frameand adapted to be driven from the driving shaft, manually operable powertransmission means for driving the jack shaft either forward orreversely, a driving connection between the jack shaft and the rearroller, a scarifier carrying frame mounted upon the main frame forvertical movement, guide means for the scarifier frame mounted on saidsupporting frame rearwardly of said rear roller, manually controllablemeans for vertically adjusting the scarifier frame, and a scarifierroller carried by the scarifier frame and having scarifying teeth, aband wheel loosely mounted upon the jack shaft, a band operativelyengaging the scarifying roll with said band wheel, and a clutch forengaging the band wheel or disengaging it from the jack shaft.

3. An earth working machine comprising a main supporting frame, rollersjournaled in said frame, a power member operatively engaged with one ofsaid rollers for moving the frame, a pair of vertical guide membersfixedly mounted on one end of the frame outwardly of one of the rollers,a slidable member engaging said guide members, means for adjusting saidslidable member within said guide members, and a scarifying rollerjournaled in said slide member and operatively connected with said powermember for r0- tation.

4. An earth working machine comprising a horizontal main frame, frontand rear rollers journaled in said frame, a power member operativelyengaged with one of the rollers, a pair of guide members mounted infixed vertical position on said horizontal frame outwardly of one of therollers, a scarifying member, a frame slidably mounted in said guidesand rotatably supporting said scarifying member adjacent one end of thehorizontal frame, means for operatively connecting said scarifyingroller to said power member, and adjusting means carried by said guidesand engaging said scarifying frame for vertically adjusting thescarifying roller.

In testimony whereof I hereunto aflix my signature.

LEE W. SIEGEL.

